scholarly journals The influence of surface fire on radial and height growth of Pinus sylvestris L. in forest-steppe in Ukraine

2019 ◽  
Vol 61 (2) ◽  
pp. 123-134
Author(s):  
Iryna Koval ◽  
Serhiy Sydorenko
Keyword(s):  
Pinus Sylvestris ◽  
Radial Growth ◽  
Height Growth ◽  
Pine Forest ◽  
Forest Steppe ◽  
Positive Trend ◽  
Radial Increment ◽  
Left Bank ◽  
Regression Equations ◽  
Surface Fire

AbstractThe article presents the results of the research on the peculiarity of response ofPinus sylvestrisL. growth in height and diameter in young pine forest stand of the Left-Bank forest-steppe of Ukraine under the influence of surface fire that happened in May 2011. Forestry taxation, comparative ecology, standard dendrochronological methods were used. Response of trees was different for the height growth and the radial increment in the year of fire (2011). The radial growth got depressed in the year of fire; at the same time, the height of trees showed positive trend of growth against the background of favourable weather conditions. The growth in height was more ductile and completed its recovery to a particular level in 2014, unlike the radial growth, which recovered only in 2016. The relationships between radial growth on one side and stand sanitary state and height of bark char on the other were approximated by quadratic and cubic regression equations. Dynamics of pine growth depends on climatic factors also. Percentage of the late wood should be used to assess the condition of stands after fire. Research of post-pyrogenic development of forest ecosystems will allow more effective planning of forest management measures, and also allow the adjustment of the monitoring duration for pine forest stands damaged by fires.

scholarly journals Dendroclimotological research of scots pine in stand of the Left-bank Forest-steppe of Ukraine

2017 ◽  
Keyword(s):  
Climatic Change ◽  
Tree Ring ◽  
Radial Growth ◽  
Climatic Factors ◽  
Weather Conditions ◽  
Vegetation Period ◽  
Forest Steppe ◽  
Radial Increment ◽  
Left Bank ◽  
Second Period

Purpose of this research was to detect influence of climatic change on pine radial increment in stand in the Left-bank Forest-steppe of Ukraine as example 100-years-old stand at State Enterprise 'Kharkiv forest scientific research station’. Methods. Dendrochronological. Method of correlation function and multiple regressions (response function) were used to analyze the influence of climatic factors on tree radial increment. For this purpose computer program RESPO was used. Results. Tree ring series were built and were used for correlation analysis between climatic factors and pine radial increment for two periods: 1960-1988 and 1988-2016.Years of minimum (1933, 1942, 1956, 1972, 1976, 1976, 1987, 1992, 2002, 2006 та 2012) and maximum (1933, 1942, 1956, 1972, 1975, 1976, 1979, 1979, 1979, 1987, 1992, 2002 та 2012) of radial increment were detected. Depressions of pine radial increment were as a result of negative weather conditions: low and high winter and early-spring temperature, droughts during vegetation period. Maximums of radial increments were depended on favorable weather conditions for pine radial growth. Correlation and Response analysis for two periods showed that increase of temperature and precipitation, excluding winter precipitation, changed response of forest ecosystems to climatic change: if in first period (1960-1988) radial increment limited by April temperature and together July temperature positively influenced on radial growth, in second period (1988-2016) June temperature negatively infuenced on radial increment. Slight increase precipitation during vegetation period could not soften impact if high temperature during vegetatation period on tree radial increment. Conclusions. At comparison 1960-1988 and 1988-2016 it was detected that during first period positive influence of summer temperature on radial growth was distinctive and for second period one started to limit increment (negative influence) were detected. Slight increase of precipitation for vegetation period in second period significantly didn’t influence on pine radial growth. In second period increase of winter temperature and number of thaws negatively influenced on soil moisture, decreased of tree ring widths.

Radial increment dynamics of Scots pine (Pinus sylvestris L.) as an indicator of hydrothermal regime of the Western Transbaikalia forest steppe

2017 ◽  
Vol 10 (5) ◽  
pp. 476-487 ◽  
Author(s):  
A. V. Demina ◽  
L. V. Belokopytova ◽  
S. G. Andreev ◽  
T. V. Kostyakova ◽  
E. A. Babushkina
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Forest Steppe ◽  
Radial Increment ◽  
Western Transbaikalia ◽  
Hydrothermal Regime

scholarly journals Influence of climate on radial growth of scots pine (Pinus Sylvestris L.) In different habitats of Meshchera lowland

2019 ◽  
pp. 67-77
Author(s):  
O. S. Zheleznova ◽  
S. A. Tobratov
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Radial Growth ◽  
Negative Relationship ◽  
East European Plain ◽  
Radial Increment ◽  
Low Contrast ◽  
Positive Correlation ◽  
East European ◽  
Key Factor

This paper is devoted to the patterns of radial growth of Scots pine (Pinus sylvestris L.) in various topoecological conditions of the Meshchera lowland (Ryazan region, the East European plain). The generalized tree-ring chronologies are constructed for 16 habitats differing in features of a relief of a day surface and a bedrock surface. Despite the relatively low-contrast relief of Meshchera, the average radial pine increment within the study area differs by 2.5 times (1.53.9 mm per year). The correlation and cluster analyses revealed that the key factor influencing the width of annual tree rings of pine is the amount of the available soil moisture. Its surplus (in wetlands) and deficiency (in conditions of sandy outliers) negatively affects the radial pine increment. It is established that in the waterlogged habitats positive correlation of the radial pine increment with temperature and negative with precipitation of autumn of the previous year is observed. The positive correlation of the radial increment with precipitation of autumn, May and with winter temperature is typical for a pine from arid habitats. The negative relationship between the pines growth and amount of precipitation and river discharge may occur with a lag of 14 years in conditions of wetlands. The positive relationship of the radial pine increment with the integral parameters of the current years moisture is more significant in conditions of relatively high hydrodynamics (for example, in conditions of sandy outliers).

YIELD CAPACITY AND QUALITY OF SOYBEAN SEEDS WHEN APPLYING SENICCATION AND DESICCATION UNDER THE CONDITIONS OF LEFT-BANK FOREST-STEPPE OF UKRAINE

2016 ◽  
Vol 1 (2) ◽  
pp. 15-18
Author(s):  
Романько ◽  
Yuriy Romanko ◽  
Мельник ◽  
Andrey Melnik
Keyword(s):  
Ammonium Nitrate ◽  
Protein Content ◽  
Maximum Level ◽  
Urea Solution ◽  
Forest Steppe ◽  
Soybean Seeds ◽  
Positive Trend ◽  
Left Bank ◽  
Yield Capacity

The research purpose was to identify high-quality variety features of formation of yield capacity and quality of soybean seeds when applying seniccation and desiccation in the Left-bank forest-steppe of Ukraine. The research subject is Anna, Romance, Vasilkovskaya varieties of soybean, the elements of technology of cultivation (desiccation and seniccation), yield capacity and quality of seeds. The experiment was carried out according to the two-factor scheme in a 4-times repeat at the Institute of Agriculture of the Northeast of NAAS of Ukraine. The research results showed that the duration of vegetation was influenced both by varietal characteristics and the application of desiccation and seniccation. On average, the smallest period from the growing phase to the full ripeness was stated on the variant with Reglon Super 2.0 l/ga and Basta 2.0 l/ga desiccation (36-37 days). The maximum level of yield capacity on the average in 2007-2009 was obtained from Vasilkovskaya variety – 2.50 t/ga. Annushka variety provided significantly lower yields (2.0 t/ha), as it was proved by the calculated NSR05. In terms of yield capacity Romantika variety took an intermediate position of 2.38 t/ga. On the variants with the application of seniccation and desiccation a positive trend of their influence on the yield capacity of soybean seeds in all studied varieties was stated. So, on average, an increase of yield capacity was stated when applying: seniccation 5.0% solution of ammonium nitrate per 0.38 t/ga; 8.0% solution of urea per 0.45 t/ga; Reglon Super 2.0 l/ga per 0.24 t/ga; Basta 2.0 l/ga 0.3 t/ga as compared to the control. Application of seniccation favored the increase of protein content: urea solution by 0.7%; solution of ammonium nitrate by 0.5% compared to the control. On the variants of desiccation the protein content was at (33.9-34.1%). Oil content of the seed of studied varieties ranged from 20.0 to 24.1%.

scholarly journals Forest typological and phytosozological assessment of forest vegetation of Slobozhansky National Park

2020 ◽  
pp. 157-168
Author(s):  
O. Bezrodnova ◽  
I. Tymochko ◽  
І. Solomakha ◽  
О. Chornobrov ◽  
H. Bondarenko
Keyword(s):  
Pinus Sylvestris ◽  
National Park ◽  
Quercus Robur ◽  
Conservation Status ◽  
Alnus Glutinosa ◽  
Pine Forest ◽  
Forest Vegetation ◽  
Left Bank ◽  
Forest Types ◽  
Oak Wood

Forest typological and phytososological biodiversity of forest vegetation of Slobozhansky National Park is shown. The park covers 5244 hectares and includes the main parts of the run off valleys of the left-bank Merla River tributary, which belongs to the Vorskla River basin in the Kharkiv region. The main forest-forming species of the Slobozhansky National Nature Park are Pinus sylvestris L. (2779.3 hectares, 59.84%), Quercus robur L. (1451.8 hectares, 31.26%). Minor areas are occupied by Betula pendula Roth (138.3 hectares, 2.98%), Alnus glutinosa (L.) P. Gaertn. (122.5 hectares, 2.64%), Populus tremula L. (45.0 hectares, 0.97%) and other species. Areas covered with forest vegetation are represented by 16 edatopes: all trophotope and almost all hygrotopes, except very dry. Among the trophotopes subors (2015.2 hectares, 43.39%), oak wood (1504.4 hectares, 32.39%) and sugruds (1042.2 hectares, 22.44%) predominate, and the part of pine forest is insignificant (82.5 hectares, 1.78%). Among hygrotopes, the majority are with fresh conditions (4060.6 hectares, 87.43%), much smaller areas are dry (268.4 hectares, 5.78%), damp (184.3 hectares, 3.97%), moist (124.4 hectares, 2.68%) and wet (6.6 hectares, 0.14%) conditions. There are 17 types of forests in the Slobozhansky National Park areas covered with forest vegetation. Fresh oak-pine forest (1780.6 hectares, 38.35%), fresh maple-linden forest (1453.6 hectares, 31.30%), fresh linden-oak-pine sugrud (756.8 hectares, 16.30%) are dominated. Pinus sylvestris plantations grow in 10 forest types. The most common types of pine forests are fresh oak-pine and fresh linden-oak-pine sugrud. Quercus robur growth in 7 forest types, the most common of which is fresh maple-linden oak wood. The distribution of forest typological differences on the territory of the park of vascular plants rare species populations, which have different sozological status is analyzed. Annex I to Resolution 6 of the Berne Convention includes the following species: Dracocephalum ruyschiana L., Jurinea cyanoides (L.) Rchb., Iris pineticola Klokov. A number of species have the appropriate conservation status in Ukraine (Diphasiastrum complanatum (L.) Holub, Lycopodium annotinum L., Dracocephalum ruyschiana, Pulsatilla pratensis (L.) Mill. Sl, Allium ursinum L., Iris furcata M. Bieb., Iris pineticola, Fritillaria meleagris L., F. ruthenica Wikstr., Tulipa quercetorum Klokov & Zoz, Epipactis helleborine (L.) Crantz, Listera ovata (L.) R. Br., Neottia nidus-avis (L.) Rich., Platanthera bifolia (L.) Rich., Stipa borysthenica Klokov ex Prokudin) and 22 species at the regional range.

SCOTS PINE (PINUS SYLVESTRIS L.) RADIAL GROWTH DYNAMICS IN FOREST STANDS IN THE VICINITY OF “AKMENES CEMENTAS” PLANT/PAPRASTOSIOS PUŠIES (PINUS SYLVESTRIS L.) RADIALIOJO PRIEAUGIO DINAMIKA ,,AKMENĖS CEMENTO“ GAMYKLOS APLINKOS MEDYNUOSE/ ДИНАМИКА РАДИАЛЬНОГО ПРИРОСТА СОСНЫ ОБЫКНОВЕННОЙ (PINUS SYLVESTRIS L.) В ДРЕВОСТОЯХ, РАСТУЩИХ В ОКРЕСТНОСТЯХ ЗАВОДА „АКМЯНЕС ЦЕМЕНТАС“

2009 ◽  
Vol 17 (3) ◽  
pp. 140-147 ◽  
Author(s):  
Vida Stravinskienė ◽  
Regina Erlickytė-Marčiukaitienė
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Radial Growth ◽  
Growth Dynamics ◽  
Vegetation Period ◽  
Anthropogenic Factors ◽  
Radial Increment ◽  
Local Impact ◽  
Plant Emissions

Investigation of Scots pine annual radial increment was carried out in the surroundings of one of the largest pollution sources in Lithuania – the cement plant “Akmenes cementas”. The main objective of the investigation was to analyse possible impact of climatic and anthropogenic factors on the radial growth of Scots pine (Pinus sylvestris L.) stands growing in the local impact zone of the plant. Investigation has shown that in peat‐bog sites active vegetation period temperature higher than the long‐term average influences the formation of radial increment positively (r = 0.22–0.34; p < 0.05), and July precipitation higher than the long‐term average causes the reduction of radial increment (r = ‐0.25; p < 0.05) of the investigated pines. Analysis of the relation between pine radial increment and plant emissions has shown that the strongest correlations are in the closest vicinity of the plant (r = -0.63; p < 0.05). Weaker, but statistically significant relations were found between radial increment of pines growing at a distance of 5–10 km from the plant and plant emissions (r = -0.49; p < 0.05), and for the most distant pine correlations became insignificant (p > 0.05). Linear regression results have shown that changes of the radial increment of pine stands closest to the plant are the biggest and they decrease with distance from the plant. Santrauka Paprastosios pušies (Pinus sylvestris L.) metinio radialiojo prieaugio pokyčių tyrimai buvo atliekami cemento gamyklos „Akmenės cementas“ aplinkoje. Pagrindinis šio tyrimo tikslas – nustatyti galimą klimato ir antropogeninių veiksnių įtaką paprastosios pušies (Pinus sylvestris L.) medynų radialiajam prieaugiui gamyklos aplinkoje. Nustatyta, kad gamyklos aplinkoje augančiuose raistašilio (Carico–sphagnosa) miško tipo pušynuose teigiamos įtakos pušų radialiojo prieaugio formavimuisi turi aukštesnė nei vidutinė daugiametė aktyviosios vegetacijos oro temperatūra (r = 0,22–0,34; p < 0,05), o didesnis nei vidutinis daugiametis liepos mėnesio kritulių kiekis lemia radialiojo prieaugio mažėjimą (r = –0,25; p < 0,05). Nagrinėjant pušų radialiojo prieaugio sąsają su gamyklos teršalų kiekiu, stipriausias koreliacinis priklausomumas nustatytas artimiausioje gamyklos aplinkoje (iki 5 km) (r = –0,63; p < 0,05). Silpnesnis, tačiau statistiškai patikimas priklausomumas nustatytas tarp vidutiniu atstumu nuo gamyklos (5–10 km) augančių pušų prieaugio ir gamyklos teršalų kiekio. Toliausiai nuo gamyklos (per 10–20 km) augančių pušų radialiojo prieaugio sąsaja su bendruoju ir pavienių teršalų kiekiu yra statistiškai nepatikima (p > 0,05). Iš tiesinės regresinės analizės rezultatų akivaizdu, kad pušynų artimiausioje gamyklos aplinkoje metinio radialiojo prieaugio pokyčiai yra didžiausi, o tolstant nuo gamyklos mažėja. Резюме Исследования годового радиального прироста сосны обыкновенной (Pinus sylvestris L.) были проведены в окрестностях цементного завода „Акмянес цементас“. Главная цель исследования – определить возможное влияние климатических и антропогенных факторов на изменение радиального прироста сосны обыкновенной (Pinus sylvestris L.), произрастающей в окрестностях цементного завода. Исследования показали, что на формирование радиального прироста сосен, растущих в сосновых древостоях леса типа Carico-sphagnosa, позитивное влияние оказывает температура воздуха, превышающая среднюю многолетнюю температуру воздуха активной вегетации (r = 0.22–0.34; p < 0.05), а количество осадков в июле, превышающее среднее многолетнее количество, способствует уменьшению радиального прироста (r = –0.25; p < 0.05). Корреляционный анализ зависимости радиального прироста сосен от эмиссии завода показал сильнейшую связь (r = –0.63; p < 0.05) на расстоянии до 5 км от завода. На расстоянии 5–10 км от завода корреляционная связь уменьшается, а при дальнейшем удалении от завода статистически не доказана. Результаты линейной регрессии показали, что наибольшие изменения радиального прироста сосен происходят на расстоянии до 5 км от завода, а с увеличением расстояния от завода они уменьшаются.

scholarly journals The radial increment of European ash (Fraxinus excelsior L.) under climate change, Ukraine

2020 ◽  
Vol 66 (No. 7) ◽  
pp. 288-298
Author(s):  
Iryna Koval ◽  
Nadiya Maksymenko
Keyword(s):  
Climate Change ◽  
Radial Growth ◽  
Winter Precipitation ◽  
Fraxinus Excelsior ◽  
Forest Steppe ◽  
Radial Increment ◽  
Ash Trees ◽  
Negative Effect ◽  
Second Period ◽  
European Ash

 The aim of the study was to compare the response of the radial increment of European ash (Fraxinus excelsior L.) in the Western and Eastern forest steppe of Ukraine to climate change. The growth-climate relationships were estimated for 1961–1987 and 1988–2014 in Western and Eastern parts of the forest steppe. The results indicate that the sensitivity of the ash radial increment in stands of the Western and Eastern forest steppe to climate variations in the second period (1988–2014) was increased compared to the first period (1961–1987). In the second period correlation analysis and response function showed a negative effect of summer droughts on the ash radial increment for both stands. Also a negative effect of winter precipitation on tree rings of ash trees in the Western forest steppe during the second period was detected. The radial growth response to climate change showed an increase in the response of European ash radial growth to climate change, which was confirmed for European ash for both stands in the Western and Eastern forest steppe.

scholarly journals Radial growth trends of fir (Abies alba Mill.), beech (Fagus sylvatica L.) and pine (Pinus sylvestris L.) in the Świętokrzyski National Park (Poland)

2019 ◽  
Vol 48 (No. 9) ◽  
pp. 377-387 ◽  
Author(s):  
R. Podlaski
Keyword(s):  
Pinus Sylvestris ◽  
Fagus Sylvatica ◽  
Radial Growth ◽  
National Park ◽  
Abies Alba ◽  
Radial Increment ◽  
Growth Trends ◽  
Breast Height ◽  
Świętokrzyski National Park ◽  
Fagus Sylvatica L

The objectives of this study are to determine a trend of the radial growth at breast height (b.h.) and to compare the radial growth of trees of younger and older generations in the XX century for fir (Abies alba Mill.), beech (Fagus sylvatica L.) and pine (Pinus sylvestris L.) in the Świętokrzyski National Park. In the investigated area fir, 41 to 200–300 years of age at breast height, gradually regenerated its radial growth after a very strong decline during 1971–1990, and most likely the process of vitality reduction and death of its stands of various age is slowly coming to an end. Pine showed a systematic decrease in the radial increment during 1885–1994, and there were no distinct symptoms indicating a change of this unfavourable trend. Beech showed no significant decrease in the radial increment during 1885–1994. In the Świętokrzyski National Park the differences in the radial growth between younger and older generations were noticeable only in the case of beech. The radial growth of trees of different ages was very similar in the case of fir and pine.  

scholarly journals Floristic core of the Russian Plain pine forests along Pinus sylvestris southern borders

2021 ◽  
Vol 875 (1) ◽  
pp. 012076
Author(s):  
N O Kin
Keyword(s):  
Pinus Sylvestris ◽  
Pine Forest ◽  
Pine Forests ◽  
Russian Plain ◽  
Forest Steppe ◽  
Southern Limit ◽  
Forest Flora ◽  
The Core ◽  
Significant Distance

Abstract Pine forests - forest tracts on the sandy left banks, where the main area is occupied by plant communities with a predominance of Pinus sylvestris. Due to the significant distance from each other, the floras of the pine forests differ. However, the flora of these pine forests also shares common characteristics. In order to establish the floristic unity of the forests at the southern limit of the distribution of Pinus sylvestris, work was carried out to identify their floristic core. For 20 years, floristic surveys have been carried out in the forests of the steppe and forest-steppe zones. A general floristic list was compiled, with the identification of aboriginal and alien fractions, and the floristic core was established. Revealed: the core of the flora is determined by the pine forest flora with the lowest number of species among the comparable pine forests. The core of the flora of the studied pine forests included 30.8% of the species of the general flora. An increase in the number of analyzed floras will bring accuracy to the determination of the floristic core. This will make it possible to form an understanding of the pine forest flora as a single floristic complex.

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